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Industry Trends & Events . . .
MIT Moves Online for Teaching Circuit Design and Analysis

MIT Moves Online for Teaching Circuit Design and Analysis Amid all of the hyped-up Internet scams on how to get a degree in six easy lessons, you can find some offerings that are both legitimate and challenging. This piece reviews a massively open online course (MOOC) in circuit design and analysis developed by MIT. The first offering of this remote-learning course boasted content comparable to its on-site counterpart taught by a renowned professor with an unconventional and Internet-friendly style, and 150,000 participants — at no cost. Here is a sample — an early complete lecture from the professor on noise margins.

A.H. Systems Preamplifiers
A.H. Systems Inc.
Modular Cleanrooms Mean Profits!
Simplex Isolation Systems

A.H. Systems Preamplifiers A.H. Systems' Preamplifier line is an excellent choice with a rugged design, no hassles with soldering your own power leads and they improve overall system sensitivity by at least 20 dB. Eight models are available ranging from 20 MHz - 40 GHz and with next-day, on-time delivery. Visit us here for more details.

Modular Cleanrooms Mean Profits! Increase product yield and profitability with AirLock modular cleanrooms from Simplex Isolation Systems. Meets ISO Class 8 (Class 100,000) to ISO Class 5 (Class 100) standards. Applications in manufacturing, medical, scientific, and others. Sturdy aluminum frames support HEPA filters, external ducting, and lighting.

Reliable Signal Analyzer . . .
Speed, RF Performance, and Price
MetricTest

Speed, RF Performance, and Price Whether you're testing to the latest cellular, WLAN or Bluetooth standards, or just need general purpose (BPSK, QPSK, PI/4DQPSK, 8PSK, 16QAM, 64QAM, 256QAM) modulation creation and analysis, choose from the Anritsu MS269xA or MS2830A analyzers that provides significant cost savings over a discrete signal analyzer and signal generator. More info...

Test Instruments . . .
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Measuring Noise from Signal-phase Fluctuations

Measuring Noise from Signal-phase Fluctuations Minimizing phase noise in electronic systems maximizes those systems' dynamic range. Achieving that goal requires accurately measuring the phenomenon, understanding both where the noise comes from and the origin of similar signals that you must exclude from your results. Here, the author delves into measuring phase noise in microwave signal generators, including its manifestation in the time and frequency domains.

High-speed Waveform Generator Features Dual Channels

High-speed Waveform Generator Features Dual Channels This new high-performance function/arbitrary waveform generator comes in 10, 25, and 50 MHz versions at 125 megasamples per second. By displaying two channels simultaneously, the instrument allows driving differential signals controlled by two outputs. A large screen clearly shows responses to changes in signal parameters in real time. The instrument includes 40 built-in waveforms and both USB and GPIB connectivity.

Board & Assembly Test . . .
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In-circuit Testing Through Lead-free Solder
 

In-circuit Testing Through Lead-free Solder The advent of lead-free solder in most electronic products has complicated the task of probing reliably for in-circuit test. Numerous special features allow these fixture pins to rise to the challenge. For example, the pins offer improved pointing accuracy. A new type of plating minimizes wear and debris transfer, while a higher preload increases initial impact penetration with less variation in pin force as boards flex during test.

Color Touchscreen Enhances Digital Radio
Testing

Color Touchscreen Enhances Digital Radio Testing Color displays enhance usability in a wide variety of applications. This lightweight (8.3 lbs) digital-radio test system allows testing transmitters, receivers, antennas, and all other digital-radio assemblies. It achieves phase noise of -95 dBc/Hz, RF signal-generator level accuracy of ±1.5 dB, and an FM deviation-meter accuracy of 4%. It can also endure hostile environments, conforming to MIL-PRF-28800A standard for humidity, shock, and vibration.

SVM 3000
Anton Paar
Rigid Borescopes
Instrument Technology, Inc.

SVM 3000 The SVM 3000 Stabinger Viscometer measures the dynamic viscosity and density of oils and fuels according to ASTM D7042. From this result, the viscometer automatically calculates the kinematic viscosity and delivers measurement results which are equivalent to ISO 3104 or ASTM D445.

Rigid Borescopes Series 123000 Rigid Borescopes lead the industry with the clearest optical images, the most innovative features, and the greatest cost-effective, top quality dependability on the market today. Thousands of variations offering many exceptional advances. Learn more...

Inspection & Test . . .
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Get the Right Vision System for the Job

Get the Right Vision System for the Job When a machine-vision system must also perform measurements, selecting the right equipment depends on thoroughly understanding the application. According to this piece, in many circumstances 2D metrology is no longer enough. Users are increasingly demanding 3D solutions. Measuring x, y, and z dimensions of a solder joint, for example, allows determining whether the volume of solder conforms to specifications.

Easy-to-Use, High-magnification Microscope

Easy-to-Use, High-magnification Microscope When is a high-performance scanning-electron microscope (SEM) like a digital camera? Answer: When it is just as easy-to-use. This new SEM offers magnification from 10x to 60,000x for samples up to 70 mm in diameter and thicknesses up to 50 mm. In addition, the touchscreen interface mimics the look and feel of today's smartphones and touch-pads, allowing users at any skill level to access even the most advanced features.

Test Equipment . . .
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Adapting In-circuit Test for Reduced Node Access

Adapting In-circuit Test for Reduced Node Access In the last two decades, the percentage of accessible test nodes on many printed-circuit boards (PCBs) has fallen from almost universal to almost nonexistent. Yet testing the boards remains a priority. Functional test provides no substitute, both because of board complexity and the development and production-line bottlenecks it would cause. This case study follows one company's success at implementing an alternative that included boundary-scan testing and embedded instrumentation.

Dramatically Increasing Device-tester Performance

Dramatically Increasing Device-tester Performance Allowing customers to upgrade nearly 4000 popular device testers in the field without incurring major expense, this company has introduced a high-density device power supply (HD DPS). The additional capability permits testing many more devices in parallel, increasing effective throughput and thereby reducing test costs for a broad range of microcontrollers, FPGAs, and digital-audio/baseband devices.

  Back to Top
RF Shield Enclosures Facilitate In-house
Testing

Select Fabricators, Inc.
Go Wireless
 
QA Technology Company, Inc.

RF Shield Enclosures Facilitate In-house Testing Select Fabricator's US made RF shield enclosures and pouches support design and in-house testing. Flexible and highly conductive, these 'Faraday Cage' enclosures secure electronic devices from RF interference or emissions. Double layer conductive silver/copper/nickel material yields average SE of -80 (1 GHz - 10 GHz).

Go Wireless For a cleaner, distortion-free test signal, and higher performance testing from the tester to the unit under test (UUT), eliminate wires in your test fixture with QA Technology's double-ended sockets and X Probe termination pins. Now available for 39 mm center conventional and .8 mm centers X Probe Socketless. Call 603-926-0348 for details.

Battery Load Testers with Real-time
Monitoring

Eagle Eye Power Solutions, LLC
AC Power Sources — Model 5900
Actioncraft Products, Inc. / Industrial Test Equipment Co., Inc.

Battery Load Testers with Real-time Monitoring Eagle Eye Power Solution's smart LB-Series Load Banks are portable, safe, economic, and come standard with DataView Software for complete data management and reporting. The LB-Series monitors the battery system during discharge. Optional "DAC"s allow the voltage of each cell to be displayed and recorded during discharge — saving you time and money!

AC Power Sources — Model 5900 The Model 5900 is a high general purpose audio generator. The circuit consists of low distortion oscillator, drive amplifier, and bipolar FET class AB1 power amplifier with an output transformer. Output: isolated output transformer; taps from 0-8 V to 0-260 V. Input: 115 V or 230 V, 50 Hz, or 60 Hz. Learn more.

Industry Standards . . .
 
Testing Bare Boards
Formatting Bare Board Test Data

Testing Bare BoardsThe IPC-9252 standard, available now from IHS, assists in selecting the test analyzer, test parameters, test data, and fixturing required to perform electrical test(s) on all unpopulated printed boards without embedded components (i.e., resistors, capacitors, etc.). The users must determine the test parameters and fixturing requirements to test for critical electrical characteristics of specific printed boards.

For more information on IHS standards, visit us here.

Formatting Bare Board Test DataThe IPC-D-356 standard, available now from IHS, describes a data format for transmitting bare board electrical test information. The material contained is intended to convey requirements, guidelines, and examples necessary to provide the data structures and concepts for bare board electrical test information in digital form, including data suitable for computer-aided repair.

For more information on IHS standards, visit us here.

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September 28, 2012 - Volume 7 Issue 9
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